Phylogeographic analysis of the red seaweed <i>Palmaria palmata</i> reveals a Pleistocene marine glacial refugium in the English Channel

Provan, Jim; Wattier, Rémi A.; Maggs, Christine A.

doi:10.1111/j.1365-294x.2005.02447.x

Cited by 146 publications

(185 citation statements)

References 48 publications

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“…Consistently, a clear genetic diversity cline along a latitudinal gradient resembling ice expansion is shown by several species with some high latitude hotspots that would indicate the position of those ice free areas that harboured surviving populations (Coyer et al, 2003;Gysels et al, 2004;Provan et al, 2005;Ben-Shlomo et al, 2006). The genetic diversity found in S. rustica was similar to that exhibited by an Antarctic ascidian species Aplidium falklandikum (Demarchi unpub data).…”

Section: Genetic Diversitysupporting

confidence: 60%

Population genetic structure of the ascidian Styela rustica at Kongsfjorden, Svalbard, Arctic

Demarchi

Chiappero

Laudien

et al. 2008

Journal of Experimental Marine Biology and Ecology

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The actual Arctic biota shows a strong affinity with that of the Boreal Atlantic and Pacific ones, as a result of an active recolonization process after the Quaternary glaciations. The geographic distribution of sessile species is usually linked to larvae dispersive capabilities which can be directly related with time spent in the plankton. Ascidians larvae are lecitothorphic and short-lived, which suggest that ascidians could be not efficient dispersers. However, the solitary ascidian Styela rustica (Linnaeus, 1767) (Tunicata, Ascidiacea) shows a wide distribution pattern from the North Atlantic to the Arctic that, together with the relatively recent colonization of the Arctic system could indicate that this species efficiently disperses and colonizes new habitats. In this study we used ISSR-PCR markers to study the genetic structure of five populations of the ascidian Styela rustica at Kongsfjorden, west Spitsbergen (Svalbard archipelago). We analyzed whether this species presents a low genetic structure, as can be expected due to the historical process of recent post glaciations colonization, or if there is genetic differentiation at a local scale, caused by short-lived larvae and limited dispersal potential. The genetic diversity in each population assessed using the marker diversity index (M) ranged from 0.288 to 0.324. Population HN, situated close to a fast retreating glacier, showed the lowest diversity. Processes associated with deglatiation (icebergs calving from the glacier that scour the benthos and the increment of inorganic particulate matter on the water column) would drive to reduced population sizes and explain the reduced genetic variability observed in the HN population with respect to the others in the fjord. This suggests a possible linkage with the global warming process. Although the weak genetic structure found among the studied populations could indicate a founder effect, the genetic landscape shape analysis together with a positive relationship between genetic and geographic distances also suggest possible current gene flow among populations in the fjord.

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Section: Genetic Diversitysupporting

confidence: 60%

Population genetic structure of the ascidian Styela rustica at Kongsfjorden, Svalbard, Arctic

Demarchi

Chiappero

Laudien

et al. 2008

Journal of Experimental Marine Biology and Ecology

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“…A glacial refugium somewhere in that region has been postulated for many species, for example coastal birds (seagulls and eider ducks; Tiedemann et al, 2004;Liebers et al, 2004), several fishes (e.g. Volckaert et al, 2002) and a seaweed (Provan et al, 2005). Compatible with this, the white-tailed eagle has been reported as the most abundant diurnal raptor in the Pleistocene fossil record of the Iberian peninsula (Sánchez-Marco, 2004;Antonio Sánchez-Marco, personal communication).…”

Section: Phylogeographic Structure and Range Contraction During Cold mentioning

confidence: 97%

Phylogeography of the white‐tailed eagle, a generalist with large dispersal capacity

Hailer

Helander

Folkestad³

et al. 2007

Journal of Biogeography

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Aim Late Pleistocene glacial changes had a major impact on many boreal and temperate taxa, and this impact can still be detected in the present-day phylogeographic structure of these taxa. However, only minor effects are expected in species with generalist habitat requirements and high dispersal capabihty. One such species is the white-tailed eagle, Haliaeetus albicilla, and we therefore tested for the expected weak population structure at a continental level in this species. This also allowed us to describe phylogeographic patterns, and to deduce Ice Age refugia and patterns of postglacial recolonization of Eurasia.Location Breeding populations from the easternmost Nearctic (Greenland) and across the Palaearctic (Iceland, continental Europe, central and eastern Asia, and Japan).Methods Sequencing of a 500 base-pair fragment of the mitochondrial DNA control region in 237 samples from throughout the distribution range.Results Our analysis revealed pronounced phylogeographic structure. Overall, low genetic variability was observed across the entire range. Haplotypes clustered in two distinct haplogroups with a predominantly eastern or western distribution, and extensive overlap in Europe. These two major lineages diverged during the late Pleistocene. The eastern haplogroup showed a pattern of rapid population expansion and colonization of Eurasia around the end of the Pleistocene. The western haplogroup had lower diversity and was absent from the populations in eastern Asia. These results suggest survival during the last glaciation in two refugia, probably located in central and western Eurasia, followed by postglacial population expansion and admixture. Relatively high genetic diversity was observed in northern regions that were ice-covered during the last glacial maximum. This, and phylogenetic relationships between haplotypes encountered in the north, indicates substantial population expansion at high latitudes. Areas of glacial meltwater runoff and proglacial lakes could have provided suitable habitats for such population growth.Main conclusions This study shows that glacial climate fluctuations had a substantial impact on white-tailed eagles, both in terms of distribution and demography. These results suggest that even species with large dispersal capabilities and relatively broad habitat requirements were strongly affected by the Pleistocene climatic shifts.

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“…In the North Atlantic, marine species (so far investigated) seem to follow a pre-LGM expansion model, e.g., the common goby (Gysels et al 2004), the Atlantic swordfish , the Atlantic bluefin tuna , Atlantic bigeye tuna (Martinez et al 2006), the red alga Palmeria palmata (Provan et al 2005), the brown alga Fucus serratus (Hoarau et al submitted), the bivalve Macoma balthica (Luttikhuizen et al 2003) and the estuarine fish, Ethmalosa fimbriata (Durand et al 2005); where the date of expansion was estimated at between 536,000 (for the common goby) and 128,000 years (for the red alga, Palmeria palmata). Thus, it is likely that highly mobile species and/or those able to shift in the subtidal fared better in the many glacial-interglacial periods.…”

Section: Phylogeographic Patternsmentioning

confidence: 99%

Population structure and historical demography of the thorny skate (Amblyraja radiata, Rajidae) in the North Atlantic

et al. 2006

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Population genetic structure of the thorny skate (Amblyraja radiata) was surveyed in >300 individuals sampled from Newfoundland, Iceland, Norway, the Kattegat and the central North Sea. A 290-bp fragment of the mt cytochrome-b gene was first screened by SSCP. Sequences of SSCP haplotypes revealed 34 haplotypes, 14 of which were unique to Iceland, 3 to Newfoundland, 1 to Norway and 3 to the Kattegat. The global F ST was weak but significant. Removal of the two Kattegat locations, which were the most differentiated, resulted in no significant genetic differentiation. Haplotype diversity was high and evenly distributed across the entire Atlantic (h = 0.8) with the exception of the North Sea (h = 0.48). Statistical parsimony revealed a star-like genealogy with a central widespread haplotype. A subsequent nested clade analysis led to the inference of contiguous expansion with evidence for long distance dispersal between Newfoundland and Iceland. Historical demographic analysis showed that thorny skates have undergone exponential population expansion that started between 1.1 million and 690,000 years ago; and that the Last Glacial Maximum apparently had little effect. These results strongly differ from those of a parallel study of the thornback ray (Raja clavata) in which clear structure and former refugial areas could be identified. Although both species have similar life history traits and overlapping ranges, the continental shelf edge apparently does not present a barrier to migration in A. radiata, as it does for R. clavata.

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Phylogeographic analysis of the red seaweed Palmaria palmata reveals a Pleistocene marine glacial refugium in the English Channel

Cited by 146 publications

References 48 publications

Population genetic structure of the ascidian Styela rustica at Kongsfjorden, Svalbard, Arctic

Population genetic structure of the ascidian Styela rustica at Kongsfjorden, Svalbard, Arctic

Phylogeography of the white‐tailed eagle, a generalist with large dispersal capacity

Population structure and historical demography of the thorny skate (Amblyraja radiata, Rajidae) in the North Atlantic

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